topic Re: System backup for RedHat in Operating System - Linux

System backup for RedHat

Patrick Chim — Sun, 05 Dec 2004 23:45:07 GMT

Hi,

I am using Red Hat Enterprise Linux AS release 3 and have a DLT VS80 connected to it. We have 2 disks running RAID0+1 and plan to add 1 more disk to form a new raid. So I need to backup the data first. After searching the forum, I prefer to use 'dump' to backup the filesystem. Is there a method to backup the whole Redhat into a bootable table just like 'ignite' in HP-UX ? If unfortunately, I need to re-create the RAID, then I must install the Redhat first and then restore the tape content, right ?

Regards,
Patrick

Re: System backup for RedHat

Ravi_8 — Mon, 06 Dec 2004 01:49:50 GMT

Hi Patrick

I haven't seen any tool like ignite in Linux.
I am using the same concept now i.e install the Linux and restore from tape

Re: System backup for RedHat

NiCK_76 — Mon, 06 Dec 2004 03:14:59 GMT

1/backup your data and config file
2/rebulid your raid
3/reinstall os
4/restore data

Re: System backup for RedHat

Vitaly Karasik_1 — Mon, 06 Dec 2004 03:32:44 GMT

We use Mondorescue http://www.microwerks.net/~hugo/index.html
for disaster recovery, but you should check if Mondo will work with your RAID configuration.

Re: System backup for RedHat

Ivajlo Yanakiev — Mon, 06 Dec 2004 04:13:34 GMT

Yes Mondo is good :)
also you can use Kickstart to keep your system configuration.
Also if you want to get all geometry you can use DD

dd if=/dev/xxxxx of=/dev/st0

Re: System backup for RedHat

Johannes Krackowizer_1 — Tue, 07 Dec 2004 01:49:10 GMT

hi patrick,

if you use lvm you can create an additional raid disk and then extend your original filesystem.

if you don't use lvm then the simpliest way would be to backup your data (/home, /opt, ...) and your config (/etc, ...). then rebuild raid and reinstall your os. patch it to the same state as your have before backup and then restore your backuped data and config.

best regards,

johannes

Re: System backup for RedHat

Oliver Schwank — Tue, 07 Dec 2004 02:16:37 GMT

Hello,

perhaps you should give system rescuecd a try:

http://www.sysresccd.org/

Bye

Oli